Finding the Fourth Proportional to 427,043.76, 588,938.58 and 354,331.44
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Solution
The fourth proportional to 427,043.76, 588,938.58 and 354,331.44 is: 488,660.59
Step by Step Solution
- Step 1: Write the proportion equation
427,043.76 : 588,938.58 = 354,331.44 : x - Step 2: Convert to fraction form
427,043.76/588,938.58 = 354,331.44/x - Step 3: Cross multiply
427,043.76x = 588,938.58 × 354,331.44 - Step 4: Simplify right side
427,043.76x = 208,679,455,122.96 - Step 5: Solve for x
x = 208,679,455,122.96/427,043.76 - Step 6: Final answer
x = 488,660.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.